Electric switch.



" M. G'UETT.

3113011110 SWITCH. APPLICATION FILED NOV. 3, 1911.

Patented Jan. 14, 1913.

1 INVENTOR.

Monroe Guett.

IVITNESSES:

HIS A TTORNEY.

i curios.

iuoitao neuntr-T, or nast ness. CGNNECTZCUT, sssisncs so THE HART & HEGMAN :1 MANUFACTURING CtDMPANY,

CQNHECTICIITJ ot-idem;

Specification of Letters Eatent.

E5 HAZE-5122231 SUNNECTIGUT, A 'CGRPORATION OF ni -inserts swrrci-L Toall whom at may concern Be it known that I, Morison Gos'i'r. a citizenofthe United States, and a resident of Hartford, in the county of Hartfordand State of Connecticut, have invented certain new, and usefulImprovements in ElGCiL-HC 'SWltClkGS, of which the following is a spoontons or other. operating handle in the usual manner; and also by a doorbolt. .Switches of this class are designed particularly for use inhotels and similar buildingsi where it is desirable to shut elf thelights in a room when the door is locked from theoutside. Provisio isalso made. so that the lights may be t rned on at the switch while thedoor is locked by the switch operating bolt.

An embodiment of the invention I have illustrated in the drawings inwhich- Figure 1 is a sectional view of a switch mechanism. 'Fig. 2 is aside view thereof.

Fig. 3 is a view of the switch as installed,

some parts being shown insection..- Fig. 4 is a sectional plan viewshowing'the manner of installing the switch.

The invention will be described as embodied in a switch of the-push.button type. The'switch parts are of usual construction comprising areceptacle at having the stationary contacts 51, 52, switch plate 53carried by the plate 54 connected through the me dium of the spring 55with an escape plate 56 having aledge 57 with which a pro-jecj tion 58on the pivoted member 59 cooperates, this escape plate 56 belngconnected with one of the pushbuttons 0 through the link 61. A The pushbutton 0 may be referred to as the on button and cl as the otf button.Mounted onthe rear of the receptacle 1s a rock-shaft 1 having at one enda crank arm 3 which is connected by a link 4t with the on push button 0.About this shaft there .is coiled a power spring one end of which issecured to the shaft and the other end held against a fixed abutment sothat when the rock-shaft is locked in'one position by the onpush'button, the spring will be wound up to store power for the furtheroperation of the switch. On the side of the receptacle is mounted a rockarbor 10 secured to which is a catch 11 arranged in operative relationwith the, dog 6 on the rock I I Patented Jan. 14, 1913. applicationfiled November 3, 1.911. Serial No. 658,348

shaft 1 and adapted, when the switch is set in the on position, tointerlock with said dog and hold the power. spring under" tension. Thisrock'arbor 10 is connected by the link 12 with the 0E push button. Thecatch. 11 has a spring 13 tending to throw it into engagement with thedog when such movement is possible and the'trip 14: which ism the pathof movement of a trip which will be hereinafter referred to. The triparrangement is most clearly seen in Fig. 3

comprising a longitudinally sliding plunger- 30 whose inner end isadapted to engage the trip l ha screw 31 being threaded into the outerend of this plunger in order to adjust its length. 4

The switch is preferably installed in the face of the wall near to thedoor casing, so that the screw .31 will be in position to be engaged bya rocker 32 pivoted in the bolt receiving recess in the door casing 33,this rocker 32 being operated by the lever 34, the end 35 of which isadapted to be engaged by the door bolt, there being pivoted to'th'islever a finger 36 which engages the rocker 32 when the door bolt isthrown to lock the door. This finger 36 clears the rocker 32 when thebolt is thrown making it possible for the switch to be'operated by thepush buttons while the door is locked. \Vhen'the bolt is withdrawn thespring 37 throws the lever iA'back to normal position and the pivotalmounting of the finger 36 allows it to ride by the rocker 32. It isnormally held in its operative position by'the spring 38.

The operation of the device is as follows: An inward movement of the onbutton 0 throws the poles in a position to bridge the stationarycontacts 51, 52 and light the lights. Through the link 4 this inwardmovement of the on push button rotates the rock shaft 1 movingthe dog 6under the catch 11 until such time as the catch is thrown down by itsspring 13 into engagement withthe dog. If it is desired to put thelights out from the switch, a pressure on the oil push button (Z rocksthe arbor 10 .moving the-catch 11 out of engagement with the dog 6 whenthe spring 5 will operate the escape plate 56 until the pivoted member59 is released when the switch spring 55 will return the parts to off110 i in turn moves the-screw 31 and plunger and a catch to hold saidmechanism in opwhenever the door bolt which is indicated of which saidswitch operating mechanism position. For this purpose, the spring 5 ismade slightly stronger than the switch spring 55. Assuming that theswitch is in its on position and the lights are lighted,

at 4:0 is thrown to lock the door, it engages the end 35 of the lever 84moving it so that the finger 36 engages the rocker-32 whichlongitudinally, engaging the'trip let and disengaging the catch 11 fromthe dog 6.

It Will be apparent that when the bolt 40 is thrown, the finger 36 iscarried by the rocker 32 as indicated in dotted lines in Fig. 3 so thatthe switch can bdoperated from inside the room.

I claim as my invention:

1. The combination with a door casing provided with a recess, doorand'lock bolt adapted to be projected into the recess in the casing andan electric switch provided with spring actuatedoperating mechanism,

erative position, of devices interposed between saidcatch and said boltand by means is released, said devices comprising a pivoted leveradapted to be engaged by said lock bolt, a finger pivotally supported onsaid lever, and a reciprocating plunger in operative engagement withsaid catch and adapted to be actuated by said finger.

2. In an electric switch, the switch mechanism including poles, anoperating handle" directly connected with the operating mechanism ofsaid switch to move the poles to one extreme position, means for movingsaid poles to their other extreme position, comprising a power deviceoperatively connected with said handle and by means of which it is madeoperative, means for holding said power device in operative condition, asecond handle connected With and adapted to release said holding meansin combination with devices for actuating said handle by the operationof a door bolt comprising a longitudinally movable plunger having oneend in operative relation to said holding means, a lever mounted inthe'door bolt recess in position to be moved by said bolt when it isthrown, said lever being operatively positioned with respect to theother end of said plunger.

3 The combination with a door casing having switch and lock-boltrecesses and a connecting passage between them, a switch located. in theswitch recess and provided with operating mechanism, a trip controllingsaid operating mechanism arranged opposite said passage, a plungermounted in the connecting passage and having one end in operativerelation with said trip, and a pivoted lever mounted in the lock-boltrecess and adapted to operate said plunger through the medium of thelook bolt.

l."ll1e combination with a door casing having a switch recess and alock-bolt rec ess connected by acominunicating passage, a switch locatedin the switch recess, a catch controlling the switch operatinginehanisin arranged opposite said passage and pro-' vided with a trip, aplunger located in said passage with one end in operative relation tosaid trip, a rocker pivoted in the lockbolt recess and lying againsttheother end of the plunger, a lever pivoted in the lockboltrecessandhaving an arm adapted to engagement by said lock bolt and a lingerpivoted on the lever and adapted to act upon said rocker when said lockbult is thrown and a spring to hold said finger in normal position.

- MONROE GUETT. Witnesses A. E. Parsons, E. E. SAGE.

